From 83f0fa0b6218c34898337bf41072ee5fedec1bde Mon Sep 17 00:00:00 2001 From: Alec Theriault Date: Wed, 15 Apr 2020 09:56:55 -0400 Subject: Don't warn about missing links in miminal sigs When renaming the Haddock interface, never emit warnings when renaming a minimal signature. Also added some documention around `renameInterface`. Minimal signatures intentionally include references to potentially un-exported methods (see the discussion in #330), so it is expected that they will not always have a link destination. On the principle that warnings should always be resolvable, this shouldn't produce a warning. See #1070. --- haddock-api/src/Haddock/Interface/Rename.hs | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'haddock-api/src/Haddock/Interface/Rename.hs') diff --git a/haddock-api/src/Haddock/Interface/Rename.hs b/haddock-api/src/Haddock/Interface/Rename.hs index ce3878b8..97f128d7 100644 --- a/haddock-api/src/Haddock/Interface/Rename.hs +++ b/haddock-api/src/Haddock/Interface/Rename.hs @@ -31,6 +31,14 @@ import Control.Monad hiding (mapM) import qualified Data.Map as Map hiding ( Map ) import Prelude hiding (mapM) +-- | Traverse docstrings and ASTs in the Haddock interface, renaming 'Name' to +-- 'DocName'. +-- +-- What this really boils down to is: for each 'Name', figure out which of the +-- modules that export the name is the preferred place to link to. +-- +-- The renamed output gets written into fields in the Haddock interface record +-- that were previously left empty. renameInterface :: DynFlags -> LinkEnv -> Bool -> Interface -> ErrMsgM Interface renameInterface dflags renamingEnv warnings iface = @@ -128,6 +136,11 @@ lookupRn name = RnM $ \lkp -> (False,maps_to) -> (maps_to, (name :)) (True, maps_to) -> (maps_to, id) +-- | Look up a 'Name' in the renaming environment, but don't warn if you don't +-- find the name. Prefer to use 'lookupRn' whenever possible. +lookupRnNoWarn :: Name -> RnM DocName +lookupRnNoWarn name = RnM $ \lkp -> (snd (lkp name), id) + -- | Run the renamer action using lookup in a 'LinkEnv' as the lookup function. -- Returns the renamed value along with a list of `Name`'s that could not be -- renamed because they weren't in the environment. @@ -532,7 +545,7 @@ renameSig sig = case sig of lnames' <- mapM renameL lnames return $ FixSig noExtField (FixitySig noExtField lnames' fixity) MinimalSig _ src (L l s) -> do - s' <- traverse renameL s + s' <- traverse (traverse lookupRnNoWarn) s return $ MinimalSig noExtField src (L l s') -- we have filtered out all other kinds of signatures in Interface.Create _ -> error "expected TypeSig" -- cgit v1.2.3